20906760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24889}}^1$

素因数の和:24910

約数の個数: 64

約数和(自身を含む): 71683200

約数和(自身を除く): 50776440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24889, 49778, 74667, 99556, 124445, 149334, 174223, 199112, 248890, 298668, 348446, 373335, 497780, 522669, 597336, 696892, 746670, 871115, 995560, 1045338, 1393784, 1493340, 1742230, 2090676, 2613345, 2986680, 3484460, 4181352, 5226690, 6968920, 10453380, 20906760]

約数ペア:

[(1, 20906760), (2, 10453380), (3, 6968920), (4, 5226690), (5, 4181352), (6, 3484460), (7, 2986680), (8, 2613345), (10, 2090676), (12, 1742230), (14, 1493340), (15, 1393784), (20, 1045338), (21, 995560), (24, 871115), (28, 746670), (30, 696892), (35, 597336), (40, 522669), (42, 497780), (56, 373335), (60, 348446), (70, 298668), (84, 248890), (105, 199112), (120, 174223), (140, 149334), (168, 124445), (210, 99556), (280, 74667), (420, 49778), (840, 24889)]